Camera optical lens

ABSTRACT

The present disclosure discloses a camera optical lens. The camera optical lens including, in an order from an object side to an image side, a first lens, a second lens having a positive refractive power, a third lens having a positive refractive power, a fourth lens, a fifth lens, and a sixth lens. The first lens is made of plastic material, the second lens is made of plastic material, the third lens is made of plastic material, the fourth lens is made of plastic material, the fifth lens is made of glass material, and the sixth lens is made of plastic material. The camera optical lens further satisfies specific conditions.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority benefit of Chinese PatentApplications Ser. No. 201810203738.6 and Ser. No. 201810203693.2 filedon Mar. 13, 2018, the entire content of which is incorporated herein byreference.

FIELD OF THE PRESENT DISCLOSURE

The present disclosure relates to optical lens, in particular to acamera optical lens suitable for handheld devices such as smart phonesand digital cameras and imaging devices.

DESCRIPTION OF RELATED ART

With the emergence of smart phones in recent years, the demand forminiature camera lens is increasing day by day, but the photosensitivedevices of general camera lens are no other than Charge Coupled Device(CCD) or Complementary metal-Oxide Semiconductor Sensor (CMOS sensor),and as the progress of the semiconductor manufacturing technology makesthe pixel size of the photosensitive devices shrink, coupled with thecurrent development trend of electronic products being that theirfunctions should be better and their shape should be thin and small,miniature camera lens with good imaging quality therefor has become amainstream in the market. In order to obtain better imaging quality, thelens that is traditionally equipped in mobile phone cameras adopts athree-piece or four-piece lens structure. And, with the development oftechnology and the increase of the diverse demands of users, and underthis circumstances that the pixel area of photosensitive devices isshrinking steadily and the requirement of the system for the imagingquality is improving constantly, the five-piece, six-piece andseven-piece lens structure gradually appear in lens design. There is anurgent need for ultra-thin wide-angle camera lenses which have goodoptical characteristics and the chromatic aberration of which is fullycorrected.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the exemplary embodiments can be better understood withreference to the following drawings. The components in the drawing arenot necessarily drawn to scale, the emphasis instead being placed toupon clearly illustrating the principles of the present disclosure.

FIG. 1 is a schematic diagram of a camera optical lens in accordancewith a first embodiment of the present invention;

FIG. 2 shows the longitudinal aberration of the camera optical lensshown in FIG. 1;

FIG. 3 shows the lateral color of the camera optical lens shown in FIG.1;

FIG. 4 presents a schematic diagram of the field curvature anddistortion of the camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a camera optical lens in accordancewith a second embodiment of the present invention;

FIG. 6 presents the longitudinal aberration of the camera optical lensshown in FIG. 5;

FIG. 7 presents the lateral color of the camera optical lens shown inFIG. 5;

FIG. 8 presents the field curvature and distortion of the camera opticallens shown in FIG. 5:

FIG. 9 is a schematic diagram of a camera optical lens in accordancewith a third embodiment of the present invention;

FIG. 10 presents the longitudinal aberration of the camera optical lensshown in FIG. 9;

FIG. 11 presents the lateral color of the camera optical lens shown inFIG. 9;

FIG. 12 presents the field curvature and distortion of the cameraoptical lens shown in FIG. 9.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

The present disclosure will hereinafter be described in detail withreference to several exemplary embodiments. To make the technicalproblems to be solved, technical solutions and beneficial effects of thepresent disclosure more apparent, the present disclosure is described infurther detail together with the figure and the embodiments. It shouldbe understood the specific embodiments described hereby is only toexplain the disclosure, not intended to limit the disclosure.

Embodiment 1

As referring to FIG. 1, the present invention provides a camera opticallens 10. FIG. 1 shows the camera optical lens 10 of embodiment 1 of thepresent invention, the camera optical lens 10 comprises 6 lenses.Specifically, from the object side to the image side, the camera opticallens 10 comprises in sequence: an aperture S1, a first lens L1, a secondlens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixthlens L6. Optical element like optical filter GF can be arranged betweenthe sixth lens L6 and the image surface Si.

The first lens L1 is made of plastic material, the second lens L2 ismade of plastic material, the third lens L3 is made of plastic material,the fourth lens L4 is made of plastic material, the fifth lens L5 ismade of glass material, and the sixth lens L6 is made of plasticmaterial.

The second lens L2 has a positive refractive power, and the third lensL3 has a positive refractive power.

Here, the focal length of the whole camera optical lens 10 is defined asf, the focal length of the first lens is defined as f1. The cameraoptical lens 10 further satisfies the following condition: 0.5≤f1/f≤10.Condition 0.5≤f1/f≤10 fixes the positive refractive power of the firstlens L1. If the lower limit of the set value is exceeded, although itbenefits the ultra-thin development of lenses, but the positiverefractive power of the first lens L1 will be too strong, problem likeaberration is difficult to be corrected, and it is also unfavorable forwide-angle development of lens. On the contrary, if the upper limit ofthe set value is exceeded, the positive refractive power of the firstlens L1 becomes too weak, it is then difficult to develop ultra-thinlenses. Preferably, the following condition shall be satisfied,1.125≤f1/f≤7.995.

The refractive index of the fifth lens L5 is defined as n5. Here thefollowing condition should be satisfied: 1.7≤n5≤2.2. This conditionfixes the refractive index of the fifth lens L5, and refractive indexwithin this range benefits the ultra-thin development of lenses, and italso benefits the correction of aberration. Preferably, the followingcondition shall be satisfied, 1.704≤n5≤2.1.

The thickness on-axis of the fifth lens L5 is defined as d9, and thetotal optical length of the camera optical lens 10 is defined as TTL.The following condition: 0.01≤d9/TTL≤0.2 should be satisfied. Thiscondition fixes the ratio between the thickness on-axis of the fifthlens L5 and the total optical length TTL. When the condition issatisfied, it is beneficial for realization of the ultra-thin lens.Preferably, the condition 0.0275≤d9/TTL≤0.132 shall be satisfied.

When the focal length of the camera optical lens 10 of the presentinvention, the focal length of each lens, the refractive power of therelated lens, and the total optical length, the thickness on-axis andthe curvature radius of the camera optical lens satisfy the aboveconditions, the camera optical lens 10 has the advantage of highperformance and satisfies the design requirement of low TTL.

In this embodiment, the first lens L1 has a positive refractive powerwith a convex object side surface relative to the proximal axis and aconcave image side surface relative to the proximal axis.

The curvature radius of the object side surface of the first lens L1 isdefined as R1, the curvature radius of the image side surface of thefirst lens L1 is defined as R2. The camera optical lens 10 furthersatisfies the following condition: −30.87≤(R1+R2)/(R1−R2)≤−3.57, bywhich, the shape of the first lens L1 can be reasonably controlled andit is effectively for correcting spherical aberration of the cameraoptical lens. Preferably, the condition −19.29≤(R1+R2)/(R1−R2)≤−4.47shall be satisfied.

The thickness on-axis of the first lens L1 is defined as d1. Thefollowing condition: 0.13≤d1≤0.62 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.21≤d1≤0.5 shall besatisfied.

In this embodiment, the second lens L2 has a convex object side surfacerelative to the proximal axis and a concave image side surface relativeto the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the second lens L2 is f2. The following condition should besatisfied: 0.8≤f2/f≤4.64, which can effectively reduce the sensitivityof lens group used in camera and further enhance the imaging quality.Preferably, the condition 1.27≤f2/f≤3.71 should be satisfied.

The curvature radius of the object side surface of the second lens L2 isdefined as R3, the curvature radius of the image side surface of thesecond lens L2 is defined as R4. The following condition should besatisfied: −6.12≤(R3+R4)/(R3−R4)≤−1.11, which fixes the shape of thesecond lens L2 and when beyond this range, with the development into thedirection of ultra-thin and wide-angle lenses, problem like chromaticaberration of the on-axis is difficult to be corrected. Preferably, thefollowing condition shall be satisfied, −3.83≤(R3+R4)/(R3−R4)≤−1.39.

The thickness on-axis of the second lens L2 is defined as d3. Thefollowing condition: 0.21≤d3≤0.71 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.33≤d3≤0.57 shall besatisfied.

In this embodiment, the third lens L3 has a convex object side surfacerelative to the proximal axis and a concave image side surface relativeto the proximal axis.

The thickness on-axis of the third lens L3 is defined as d5. Thefollowing condition: 0.12≤d5≤0.39 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.19≤d5≤0.31 shall besatisfied.

In this embodiment, the fourth lens L4 has a positive refractive powerwith a concave object side surface relative to the proximal axis and aconvex image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the fourth lens L4 is f4. The following condition should besatisfied: 0.51≤f4/f≤1.59, which can effectively reduce the sensitivityof lens group used in camera and further enhance the imaging quality.Preferably, the condition 0.81≤f4/f≤1.27 should be satisfied.

The curvature radius of the object side surface of the fourth lens L4 isdefined as R7, the curvature radius of the image side surface of thefourth lens L4 is defined as R8. The following condition should besatisfied: 1.61≤(R7+R8)/(R7−R8)≤5.03, by which, the shape of the fourthlens L4 is fixed, further, when beyond this range, with the developmentinto the direction of ultra-thin and wide-angle lenses, problem likeaberration of the off-axis picture angle is difficult to be corrected.Preferably, the following condition shall be satisfied,2.58≤(R7+R8)/(R7−R8)≤4.02.

The thickness on-axis of the fourth lens L4 is defined as d7. Thefollowing condition: 0.28≤d7≤0.86 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.45≤d7≤0.69 shall besatisfied.

In this embodiment, the fifth lens L5 has a negative refractive powerwith a concave object side surface relative to the proximal axis and aconvex image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the fifth lens L5 is f5. The following condition should besatisfied: −1.93≤f5/f≤−0.53, which can effectively smooth the lightangles of the camera and reduce the tolerance sensitivity. Preferably,the condition −1.21≤f5/f≤−0.66 should be satisfied.

The curvature radius of the object side surface of the fifth lens L5 isdefined as R9, the curvature radius of the image side surface of thefifth lens L5 is defined as R10. The following condition should besatisfied: −5.51≤(R9+R10)/(R9−R10)≤−1.49, by which, the shape of thefifth lens L5 is fixed, further, when beyond this range, with thedevelopment into the direction of ultra-thin and wide-angle lenses,problem like aberration of the off-axis picture angle is difficult to becorrected. Preferably, the following condition shall be satisfied,−3.45≤(R9+R10)/(R9−R10)≤−1.87.

The thickness on-axis of the fifth lens L5 is defined as d9. Thefollowing condition: 0.13≤d9≤0.52 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.20≤d9≤0.42 shall besatisfied.

In this embodiment, the sixth lens L6 has a positive refractive powerwith a convex object side surface relative to the proximal axis and aconcave image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focallength of the sixth lens L6 is f6. The following condition should besatisfied: 1.00≤f6/f≤4.2, which can effectively reduce the sensitivityof lens group used in camera and further enhance the imaging quality.Preferably, the condition 1.595≤f6/f≤3.36 should be satisfied.

The curvature radius of the object side surface of the sixth lens L6 isdefined as R11, the curvature radius of the image side surface of thesixth lens L6 is defined as R12. The following condition should besatisfied: −94.45≤(R11+R12)/(R11−R12)≤−18.52, by which, the shape of thesixth lens L6 is fixed, further, when beyond this range, with thedevelopment into the direction of ultra-thin and wide-angle lenses,problem like aberration of the off-axis picture angle is difficult to becorrected. Preferably, the following condition shall be satisfied,−59.03≤(R11+R12)/(R11−R12)≤−23.15.

The thickness on-axis of the sixth lens L6 is defined as d11. Thefollowing condition: 0.44≤d11≤1.42 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.71≤d11≤1.14 shall besatisfied.

The focal length of the whole camera optical lens 10 is f, the combinedfocal length of the first lens L1 and the second lens L2 is f12. Thefollowing condition should be satisfied: 0.575≤f12/f≤1.96, which caneffectively avoid the aberration and field curvature of the cameraoptical lens, and can suppress the rear focal length for realizing theultra-thin lens. Preferably, the condition 0.91≤f12/f≤1.57 should besatisfied.

In this embodiment, the total optical length TTL of the camera opticallens 10 is less than or equal to 6.06 mm, it is beneficial for therealization of ultra-thin lenses. Preferably, the total optical lengthTTL of the camera optical lens 10 is less than or equal to 5.79 mm.

In this embodiment, the aperture F number of the camera optical lens 10is less than or equal to 2.06. A large aperture has better imagingperformance. Preferably, the aperture F number of the camera opticallens 10 is less than or equal to 2.02.

With such design, the total optical length TTL of the whole cameraoptical lens 10 can be made as short as possible, thus theminiaturization characteristics can be maintained.

In the following, an example will be used to describe the camera opticallens 10 of the present invention. The symbols recorded in each exampleare as follows. The unit of distance, radius and center thickness is mm.

TTL: Optical length (the distance on-axis from the object side surfaceof the first lens L1 to the image surface).

Preferably, inflexion points and/or arrest points can also be 2 sarranged on the object side surface and/or image side surface of thelens, so that the demand for high quality imaging can be satisfied, thedescription below can be referred for specific implementable scheme.

The design information of the camera optical lens 10 in the firstembodiment of the present invention is shown in the following, the unitof the focal length, distance, radius and center thickness is mm.

The design information of the camera optical lens 10 in the firstembodiment of the present invention is shown in the tables 1 and 2.

TABLE 1 R d nd vd S1 ∞ d0= −0.306 R1 1.853 d1= 0.415 nd1 1.6806 v1 56.30R2 2.682 d2= 0.263 R3 3.414 d3= 0.414 nd2 1.5140 v2 56.80 R4 6.727 d4=0.271 R5 139.345 d5= 0.258 nd3 1.6515 v3 20.50 R6 139.243 d6= 0.209 R7−3.010 d7= 0.558 nd4 1.7057 v4 55.02 R8 −1.627 d8= 0.079 R9 −1.538 d9=0.261 nd5 1.7092 v5 25.60 R10 −3.880 d10= 0.270 R10 1.562 d11= 0.948 nd61.5418 v6 35.34 R12 1.630 d12= 0.683 R13 ∞ d13= 0.210 ndg 1.5168 vg64.17 R14 ∞ d14= 0.667

Where:

In which, the meaning of the various symbols is as follows.

S1: Aperture;

R: The curvature radius of the optical surface, the central curvatureradius in case of lens;

R1: The curvature radius of the object side surface of the first lensL1;

R2: The curvature radius of the image side surface of the first lens L1;

R3: The curvature radius of the object side surface of the second lensL2;

R4: The curvature radius of the image side surface of the second lensL2;

R5: The curvature radius of the object side surface of the third lensL3;

R6: The curvature radius of the image side surface of the third lens L3;

R7: The curvature radius of the object side surface of the fourth lensL4;

R8: The curvature radius of the image side surface of the fourth lensL4;

R9: The curvature radius of the object side surface of the fifth lensL5;

R10: The curvature radius of the image side surface of the fifth lensL5;

R11: The curvature radius of the object side surface of the sixth lensL6;

R12: The curvature radius of the image side surface of the sixth lensL6;

R13: The curvature radius of the object side surface of the opticalfilter GF;

R14: The curvature radius of the image side surface of the opticalfilter GF;

d: The thickness on-axis of the lens and the distance on-axis betweenthe lens;

d0: The distance on-axis from aperture S1 to the object side surface ofthe first lens L1;

d1: The thickness on-axis of the first lens L1;

d2: The distance on-axis from the image side surface of the first lensL1 to the object side surface of the second lens L2;

d3: The thickness on-axis of the second lens L2;

d4: The distance on-axis from the image side surface of the second lensL2 to the object side surface of the third lens L3;

d5: The thickness on-axis of the third lens L3;

d6: The distance on-axis from the image side surface of the third lensL3 to the object side surface of the fourth lens L4;

d7: The thickness on-axis of the fourth lens L4;

d8: The distance on-axis from the image side surface of the fourth lensL4 to the object side surface of the fifth lens L5;

d9: The thickness on-axis of the fifth lens L5;

d10: The distance on-axis from the image side surface of the fifth lensL5 to the object side surface of the sixth lens L6;

d11: The thickness on-axis of the sixth lens L6;

d12: The distance on-axis from the image side surface of the sixth lensL6 to the object side surface of the optical filter GF;

d13: The thickness on-axis of the optical filter GF;

d14: The distance on-axis from the image side surface to the imagesurface of the optical filter GF;

nd: The refractive index of the d line;

nd1: The refractive index of the d line of the first lens L1;

nd2: The refractive index of the d line of the second lens L2;

nd3: The refractive index of the d line of the third lens L3;

nd4: The refractive power refractive index of the d line of the fourthlens L4;

nd5: The refractive index of the d line of the fifth lens L5;

nd6: The refractive index of the d line of the sixth lens L6;

ndg: The refractive power refractive index of the d line of the opticalfilter GF;

vd: The abbe number;

v1: The abbe number of the first lens L1;

v2: The abbe number of the second lens L2;

v3: The abbe number of the third lens L3;

v4: The abbe number of the fourth lens L4;

v5: The abbe number of the fifth lens L5;

v6: The abbe number of the sixth lens L6;

vg: The abbe number of the optical filter GF.

Table 2 shows the aspherical surface data of the camera optical lens 10in the embodiment 1 of the present invention.

TABLE 2 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1  5.37E−01 −1.01E−02  8.45E−03 −1.23E−02  1.35E−02 −9.64E−03 3.24E−03−3.65E−04 R2  8.95E−01 −9.09E−03 −1.25E−03  3.68E−03 −7.47E−04 −8.41E−036.68E−03 −2.44E−03 R3 −1.78E+01  1.23E−02 −4.45E−02 −1.43E−03  3.49E−02−6.49E−02 3.16E−02 −4.74E−03 R4  7.58E+00 −5.59E−02 −3.67E−02 −3.25E−02 5.44E−02 −6.10E−02 2.49E−02 −7.76E−04 R5  0.00E+00 −7.68E−02 −4.30E−02−5.39E−02 −5.60E−03  2.63E−02 3.11E−03 −2.44E−03 R6  0.00E+00 −4.33E−02 4.71E−02 −1.42E−01  1.50E−01 −8.76E−02 2.09E−02  9.04E−04 R7  3.91E+00−3.12E−02  3.60E−02  6.69E−02 −5.70E−02 −1.14E−02 2.20E−02 −4.20E−03 R8−2.72E−01  1.03E−02 −3.81E−02  5.52E−02 −3.71E−02  1.61E−02 −2.52E−03  1.64E−04 R9 −4.86E+00  1.89E−02 −1.90E−01  3.64E−01 −4.35E−01  3.04E−01−1.11E−01   1.60E−02 R10 −3.91E+00 −1.58E−01  2.43E−01 −2.57E−01 1.71E−01 −6.39E−02 1.23E−02 −9.64E−04 R11 −9.39E+00 −1.58E−01  3.10E−02−2.02E−03 −2.74E−04  1.15E−05 7.23E−06 −6.54E−07 R12 −4.12E+00 −1.13E−01 1.70E−02 −2.94E−03  3.05E−04 −1.68E−05 4.43E−07 −9.15E−09

Among them, K is a conic index, A4, A6, A8, A10, A12, A14, A16 areaspheric surface indexes.

IH: Image heighty=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2)]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶  (1)

For convenience, the aspheric surface of each lens surface uses theaspheric surfaces shown in the above condition (1). However, the presentinvention is not limited to the aspherical polynomials form shown in thecondition (1).

Table 3 and table 4 show the inflexion points and the arrest pointdesign data of the camera optical lens 10 lens in embodiment 1 of thepresent invention. In which, P1R1 and P1R2 represent respectively theobject side surface and image side surface of the first lens L1, P2R1and P2R2 represent respectively the object side surface and image sidesurface of the second lens L2, P3R1 and P3R2 represent respectively theobject side surface and image side surface of the third lens L3, P4R1and P4R2 represent respectively the object side surface and image sidesurface of the fourth lens L4, P5R1 and P5R2 represent respectively theobject side surface and image side surface of the fifth lens L5, P6R1and P6R2 represent respectively the object side surface and image sidesurface of the sixth lens L6. The data in the column named “inflexionpoint position” are the vertical distances from the inflexion pointsarranged on each lens surface to the optic axis of the camera opticallens 10. The data in the column named “arrest point position” are thevertical distances from the arrest points arranged on each lens surfaceto the optic axis of the camera optical lens 10.

TABLE 3 Inflexion point Inflexion point Inflexion point Inflexion pointnumber position 1 position 2 position3 P1R1 0 P1R2 1 1.025 P2R1 1 0.635P2R2 1 0.425 P3R1 2 0.095 1.135 P3R2 2 0.125 1.165 P4R1 2 1.115 1.295P4R2 1 1.125 P5R1 1 1.395 P5R2 2 1.115 1.525 P6R1 3 0.485 1.525 2.225P6R2 1 0.745

TABLE 4 Arrest point Arrest point Arrest point Arrest point numberposition 1 position 2 position 3 P1R1 0 P1R2 0 P2R1 1 0.935 P2R2 1 0.665P3R1 1 0.155 P3R2 1 0.215 P4R1 0 P4R2 1 1.395 P5R1 0 P5R2 0 P6R1 3 1.0452.155 2.275 P6R2 1 1.745

FIG. 2 and FIG. 3 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 486 nm, 588 nm and656 nm passes the camera optical lens 10 in the first embodiment. FIG. 4shows the field curvature and distortion schematic diagrams after lightwith a wavelength of 588 nm passes the camera optical lens 10 in thefirst embodiment, the field curvature S in FIG. 4 is a field curvaturein the sagittal direction, T is a field curvature in the meridiandirection.

Table 13 shows the various values of the embodiments 1, 2, 3, and thevalues corresponding with the parameters which are already specified inthe conditions.

As shown in Table 13, the first embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 2.092 mm, the full vision field image height is 3.512 mm, thevision field angle in the diagonal direction is 80.03°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

Embodiment 2

Embodiment 2 is basically the same as embodiment 1, the meaning of itssymbols is the same as that of embodiment 1, in the following, only thedifferences are described.

Table 5 and table 6 show the design data of the camera optical lens 20in embodiment 2 of the present invention.

TABLE 5 R d nd Nd S1 ∞ d0= −0.304 R1 1.845 d1= 0.413 nd1 1.6683 v1 56.30R2 2.692 d2= 0.260 R3 3.281 d3= 0.415 nd2 1.5140 v2 56.80 R4 6.615 d4=0.280 R5 83.557 d5= 0.235 nd3 1.6390 v3 20.50 R6 83.465 d6= 0.216 R7−3.000 d7= 0.563 nd4 1.7057 v4 52.68 R8 −1.611 d8= 0.078 R9 −1.642 d9=0.250 nd5 2.0025 v5 25.60 R10 −3.511 d10= 0.266 R11 1.464 d11= 0.935 nd61.6018 v6 35.24 R12 1.572827 d12= 0.703 R13 ∞ d13= 0.210 ndg 1.5168 vg64.17 R14 ∞ d14= 0.687

Table 6 shows the aspherical surface data of each lens of the cameraoptical lens 20 in embodiment 2 of the present invention.

TABLE 6 Conic index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1  5.32E−01 −1.04E−02  8.25E−03 −1.25E−02  1.34E−02 −9.69E−03 3.22E−03−3.65E−04 R2  8.58E−01 −9.32E−03 −1.86E−03  3.61E−03 −7.09E−04 −8.40E−036.64E−03 −2.50E−03 R3 −1.67E+01  1.28E−02 −4.53E−02 −2.15E−03  3.45E−02−6.51E−02 3.15E−02 −4.73E−03 R4  5.30E+00 −5.75E−02 −3.70E−02 −3.24E−02 5.45E−02 −6.10E−02 2.49E−02 −8.21E−04 R5  0.00E+00 −7.94E−02 −4.35E−02−5.38E−02 −5.42E−03  2.64E−02 3.23E−03 −2.35E−03 R6  0.00E+00 −4.12E−02 4.79E−02 −1.42E−01  1.49E−01 −8.77E−02 2.09E−02  8.80E−04 R7  3.97E+00−2.95E−02  3.58E−02  6.68E−02 −5.69E−02 −1.13E−02 2.21E−02 −4.17E−03 R8−2.68E−01  1.10E−02 −3.89E−02  5.49E−02 −3.71E−02  1.61E−02 −2.48E−03  1.88E−04 R9 −4.27E+00  1.94E−02 −1.87E−01  3.65E−01 −4.35E−01  3.04E−01−1.11E−01   1.60E−02 R10 −4.09E+00 −1.60E−01  2.42E−01 −2.57E−01 1.71E−01 −6.39E−02 1.23E−02 −9.64E−04 R11 −8.99E+00 −1.60E−01  3.09E−02−2.02E−03 −2.71E−04  1.18E−05 7.23E−06 −6.61E−07 R12 −4.51E+00 −1.13E−01 1.70E−02 −2.94E−03  3.06E−04 −1.68E−05 4.41E−07 −9.47E−09

Table 7 and table 8 show the inflexion points and the arrest pointdesign data of the camera optical lens 20 lens in embodiment 2 of thepresent invention.

TABLE 7 Inflexion point Inflexion point Inflexion point Inflexion pointnumber position 1 position 2 position3 P1R1 0 P1R2 1 1.015 P2R1 1 0.635P2R2 1 0.415 P3R1 2 0.115 1.125 P3R2 2 0.165 1.175 P4R1 2 1.115 1.275P4R2 1 1.125 P5R1 1 1.395 P5R2 2 1.165 1.465 P6R1 3 0.485 1.535 2.245P6R2 1 0.725

TABLE 8 Arrest point Arrest point Arrest point Arrest point numberposition 1 position 2 position 3 P1R1 0 P1R2 0 P2R1 1 0.935 P2R2 1 0.665P3R1 1 0.195 P3R2 1 0.285 P4R1 0 P4R2 1 1.395 P5R1 0 P5R2 0 P6R1 3 1.0552.175 2.295 P6R2 1 1.715

FIG. 6 and FIG. 7 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 486 nm, 588 nm and656 nm passes the camera optical lens 20 in the second embodiment. FIG.8 shows the field curvature and distortion schematic diagrams afterlight with a wavelength of 588 nm passes the camera optical lens 20 inthe second embodiment.

As shown in Table 13, the second embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 2.086 mm, the full vision field image height is 3.512 mm, thevision field angle in the diagonal direction is 80.18°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

Embodiment 3

Embodiment 3 is basically the same as embodiment 1, the meaning of itssymbols is the same as that of embodiment 1, in the following, only thedifferences are described.

Table 9 and table 10 show the design data of the camera optical lens 30in embodiment 3 of the present invention.

TABLE 9 R d nd Nd S1 ∞ d0= −0.233 R1 1.971 d1= 0.265 nd1 1.5187 v1 56.30R2 2.244 d2= 0.120 R3 2.459 d3= 0.472 nd2 1.5140 v2 56.80 R4 9.850 d4=0.307 R5 15.282 d5= 0.241 nd3 1.5397 v3 22.85 R6 15.197 d6= 0.249 R7−3.053 d7= 0.575 nd4 1.7057 v4 70.00 R8 −1.609 d8= 0.086 R9 −1.562 d9=0.347 nd5 1.7099 v5 25.60 R10 −4.084 d10= 0.216 R11 1.321 d11= 0.887 nd61.5408 v6 37.10 R12 1.390418 d12= 0.746 R13 ∞ d13= 0.210 ndg 1.5168 vg64.17 R14 ∞ d14= 0.731

Table 10 shows the aspherical surface data of each lens of the cameraoptical lens 30 in embodiment 3 of the present invention.

TABLE 10 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1  5.20E−01 −1.02E−02  6.27E−03 −1.30E−02  1.37E−02 −9.29E−03 3.46E−03−5.26E−04 R2  2.00E−01 −2.65E−02 −2.71E−03  2.43E−03 −2.34E−03 −9.58E−036.34E−03 −2.17E−03 R3 −8.23E+00  2.51E−02 −4.68E−02 −5.13E−03  3.30E−02−6.63E−02 3.01E−02 −6.25E−03 R4  2.38E+01 −5.08E−02 −3.46E−02 −3.27E−02 5.36E−02 −6.15E−02 2.48E−02 −7.49E−04 R5  0.00E+00 −8.69E−02 −4.29E−02−5.32E−02 −4.51E−03  2.71E−02 3.75E−03 −2.08E−03 R6  0.00E+00 −4.75E−02 4.49E−02 −1.43E−01  1.49E−01 −8.83E−02 2.06E−02  8.16E−04 R7  3.90E+00−3.01E−02  3.51E−02  6.69E−02 −5.69E−02 −1.14E−02 2.19E−02 −4.38E−03 R8−2.74E−01  1.03E−02 −3.78E−02  5.47E−02 −3.75E−02  1.59E−02 −2.52E−03  2.26E−04 R9 −6.21E+00  1.61E−02 −1.88E−01  3.65E−01 −4.35E−01  3.04E−01−1.11E−01   1.60E−02 R10 −4.42E+00 −1.55E−01  2.43E−01 −2.57E−01 1.71E−01 −6.39E−02 1.23E−02 −9.64E−04 R11 −7.27E+00 −1.55E−01  3.05E−02−2.06E−03 −2.69E−04  1.29E−05 7.15E−06 −6.73E−07 R12 −4.09E+00 −1.13E−01 1.70E−02 −2.95E−03  3.03E−04 −1.69E−05 4.47E−07 −8.50E−09

Table 11 and table 12 show the inflexion points and the arrest pointdesign data of the camera optical lens 30 lens in embodiment 3 of thepresent invention.

TABLE 11 Inflexion point Inflexion point Inflexion point Inflexion pointnumber position 1 position 2 position 3 P1R1 0 P1R2 1 0.925 P2R1 1 0.695P2R2 1 0.375 P3R1 2 0.245 1.095 P3R2 2 0.365 1.215 P4R1 2 1.125 1.315P4R2 1 1.135 P5R1 1 1.405 P5R2 2 1.095 1.715 P6R1 3 0.505 1.595 2.065P6R2 1 0.745

TABLE 12 Arrest point Arrest point number position 1 P1R1 0 P1R2 0 P2R11 0.965 P2R2 1 0.595 P3R1 1 0.405 P3R2 1 0.595 P4R1 0 P4R2 0 P5R1 0 P5R20 P6R1 1 1.135 P6R2 1 1.845

FIG. 10 and FIG. 11 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 486 nm, 588 nm and656 nm passes the camera optical lens 30 in the third embodiment. FIG.12 shows the field curvature and distortion schematic diagrams afterlight with a wavelength of 588 nm passes the camera optical lens 30 inthe third embodiment.

As shown in Table 13, the third embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 1.957 mm, the full vision field image height is 3.512 mm, thevision field angle in the diagonal direction is 83.79°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

TABLE 13 Embodiment Embodiment Embodiment 1 2 3 f 4.1832278664.172143734 3.914532977 f1 7.323642953 7.347240238 23.44938867 f212.94009748 12.1542058 6.238774613 f3 9.56E+12 1.00E+10 3.29E+13 f44.300807447 4.223856802 4.140313739 f5 −3.766827755 −3.298724921−3.779336744 f6 11.7226863 8.30584367 8.904844562 f12 4.8336219174.739294463 5.116545745 (R1 + R2)/(R1 − R2) −5.470192599 −5.360602103−15.43261256 (R3 + R4)/(R3 − R4) −3.061210496 −2.968665597 −1.66522099(R7 + R8)/(R7 − R8) 3.353751644 3.320712425 3.229988225 (R9 + R10)/(R9 −−2.31341657 −2.757325541 −2.238788614 R10) (R11 + R12)/(R11 −−47.22590363 −27.77624754 −38.8163751 R12) f1/f 1.75071576 1.7610227995.990341326 f2/f 3.093328381 2.913180027 1.593746853 f4/f 1.0281073821.012394843 1.057677573 f5/f −0.900459615 −0.790654669 −0.965462998 f6/f2.802306419 1.990785601 2.274816591 f12/f 1.155476601 1.1359374861.307064157 d1 0.415000388 0.412750303 0.265207605 d3 0.4135515730.415029777 0.472228637 d5 0.258455563 0.234672084 0.241182865 d70.558222314 0.562820801 0.575292708 d9 0.260998419 0.2500465890.346780032 d11 0.948142399 0.934893526 0.887394579 Fno 2.0000037612.00000179 1.999996412 TTL 5.506285314 5.509807727 5.453604356 d1/TTL0.075368486 0.074911925 0.048629785 d3/TTL 0.075105366 0.0753256370.08659019 d5/TTL 0.04693828 0.042591701 0.044224489 d7/TTL 0.1013791120.1021489 0.10548853 d9/TTL 0.04740009 0.04538209 0.06358731 d11/TTL0.172192748 0.169678067 0.16271708 n1 1.680561 1.668287 1.518659 n21.514 1.514 1.514 n3 1.651491 1.639018 1.539718 n4 1.705679 1.7056791.705679 n5 1.709195 2.002463 1.70992 n6 1.541814 1.601758 1.540775 v156.3 56.3 56.3 v2 56.8 56.8 56.8 v3 20.499626 20.499471 22.852293 v455.018517 52.682222 70.00021 v5 25.6 25.6 25.6 v6 35.344735 35.23690437.097636

It is to be understood, however, that even though numerouscharacteristics and advantages of the present exemplary embodiments havebeen set forth in the foregoing description, together with details ofthe structures and functions of the embodiments, the disclosure isillustrative only, and changes may be made in detail, especially inmatters of shape, size, and arrangement of parts within the principlesof the invention to the full extent indicated by the broad generalmeaning of the terms where the appended claims are expressed.

What is claimed is:
 1. A camera optical lens comprising, from an objectside to an image side in sequence: a first lens, a second lens having apositive refractive power, a third lens having a positive refractivepower, a fourth lens, a fifth lens, and a sixth lens; wherein the cameraoptical lens further satisfies the following conditions:0.5≤f1/f≤10;1.7≤n5≤2.2;0.01≤d9/TTL≤0.2;0.57≤f12/f≤1.96; where f: the focal length of the camera optical lens;f1: the focal length of the first lens; f12: the combined focal lengthof the first lens and the second lens; n5: the refractive index of thefifth lens; d9: the thickness on-axis of the fifth lens; TTL: the totaloptical length of the camera optical lens.
 2. The camera optical lens asdescribed in claim 1, wherein the first lens is made of plasticmaterial, the second lens is made of plastic material, the third lens ismade of plastic material, the fourth lens is made of plastic material,the fifth lens is made of glass material, the sixth lens is made ofplastic material.
 3. The camera optical lens as described in claim 1further satisfying the following conditions:1.125≤f1/f≤7.995;1.704≤n5≤2.1;0.027≤d9/TTL≤0.132.
 4. The camera optical lens as described in claim 1,wherein first lens has a positive refractive power with a convex objectside surface and a concave image side surface to the proximal axis, thecamera optical lens further satisfies the following conditions:−30.87(R1+R2)/(R1−R2)≤−3.57;0.13 mm≤d1≤0.62 mm; where R1: the curvature radius of object sidesurface of the first lens; R2: the curvature radius of image sidesurface of the first lens; d1: the thickness on-axis of the first lens.5. The camera optical lens as described in claim 4 further satisfyingthe following conditions:−19.29≤(R1+R2)/(R1−R2)≤−4.47;0.21 mm≤d1≤0.5 mm.
 6. The camera optical lens as described in claim 1,wherein the second lens has a convex object side surface and a concaveimage side surface; the camera optical lens further satisfies thefollowing conditions:0.8≤f2/f≤4.64;−6.12≤(R3+R4)/(R3−R4)≤−1.11;0.21 mm≤d3≤0.71 mm; where f: the focal length of the camera opticallens; f2: the focal length of the second lens; R3: the curvature radiusof the object side surface of the second lens; R4: the curvature radiusof the image side surface of the second lens; d3: the thickness on-axisof the second lens.
 7. The camera optical lens as described in claim 6further satisfying the following conditions:1.27≤f2/f≤3.71;−3.83≤(R3+R4)/(R3−R4)≤−1.39;0.33 mm≤d3≤0.57 mm.
 8. The camera optical lens as described in claim 1,wherein the third lens has a convex object side surface and a concaveimage side surface to the proximal axis; the camera optical lens furthersatisfies the following conditions:0.12 mm≤d5≤0.39 mm; where d5: the thickness on-axis of the third lens.9. The camera optical lens as described in claim 8 further satisfyingthe following conditions:0.19 mm≤d5≤0.31 mm.
 10. The camera optical lens as described in claim 1,wherein the fourth lens has a positive refractive power with a concaveobject side surface and a convex image side surface to the proximalaxis; the camera optical lens further satisfies the followingconditions:0.51≤f4/f≤1.59;1.61≤(R7+R8)/(R7−R8)≤5.03;0.28 mm≤d7≤0.86 mm; where f: the focal length of the camera opticallens; f4: the focal length of the fourth lens; R7: the curvature radiusof the object side surface of the fourth lens; R8: the curvature radiusof the image side surface of the fourth lens; d7: the thickness on-axisof the fourth lens.
 11. The camera optical lens as described in claim 10further satisfying the following conditions:0.81≤f4/f≤1.27;2.58≤(R7+R8)/(R7−R8)≤4.02;0.45 mm≤d7≤0.69 mm.
 12. The camera optical lens as described in claim 1,wherein the fifth lens has a negative refractive power with a concaveobject side surface and a convex image side surface to the proximalaxis; the camera optical lens further satisfies the followingconditions:−1.93≤f5/f≤−0.53;−5.51≤(R9+R10)/(R9−R10)≤−1.49;0.13 mm≤d9≤0.52 mm; where f: the focal length of the camera opticallens; f5: the focal length of the fifth lens; R9: the curvature radiusof the object side surface of the fifth lens; R10: the curvature radiusof the image side surface of the fifth lens; d9: the thickness on-axisof the fifth lens.
 13. The camera optical lens as described in claim 12further satisfying the following conditions:−1.21≤f5/f≤−0.66;−3.45≤(R9+R10)/(R9−R10)≤−1.87;0.20 mm≤d9≤0.42 mm.
 14. The camera optical lens as described in claim 1,wherein the sixth lens has a positive refractive power with a convexobject side surface and a concave image side surface to the proximalaxis; the camera optical lens further satisfies the followingconditions:1.00≤f6/f≤4.2;−94.45≤(R11+R12)/(R11−R12)≤−18.52;0.44 mm≤d11≤1.42 mm; where f: the focal length of the camera opticallens; f6: the focal length of the sixth lens; R11: the curvature radiusof the object side surface of the sixth lens; R12: the curvature radiusof the image side surface of the sixth lens; d11: the thickness on-axisof the sixth lens.
 15. The camera optical lens as described in claim 14further satisfying the following conditions:1.59≤f6/f≤3.36;−59.03≤(R11+R12)/(R11−R12)≤−23.15;0.71 mm≤d11≤−1.14 mm.
 16. The camera optical lens as described in claim1 further satisfying the following condition:0.91≤f12/f≤1.57.
 17. The camera optical lens as described in claim 1,wherein the total optical length TTL of the camera optical lens is lessthan or equal to 6.06 mm.
 18. The camera optical lens as described inclaim 17, wherein the total optical length TTL of the camera opticallens is less than or equal to 5.79 mm.
 19. The camera optical lens asdescribed in claim 1, wherein the aperture F number of the cameraoptical lens is less than or equal to 2.06.
 20. The camera optical lensas described in claim 19, wherein the aperture F number of the cameraoptical lens is less than or equal to 2.02.